SteelSeries 7G keyboard tested - is it worth your money?

ExtremeTech has reviewed the new expensive SteelSeries 7G gaming keyboard.

If you're a gamer, what sort of keyboard should you use? There are those with custom key layouts like the Z-Board, or with game-specific features like the LCD on Logitech's G15; keyboards with new features specifically targeted at games.
Then there are keyboards like the 7G from SteelSeries . It has no features especially targeted at games, but rather focuses on improving the core mechanics of the keyboard itself—the number of simultaneous key presses, the action of the keys themselves, the fundamental build quality. Is this the right way to go?

The reviewer says he's a bit disappointed by this $150 keyboard as it lacks a lot of basic features like a volume dial or some independent media keys. He says the mechanical keys didn't really improve gaming performance and complains the USB ports only support the old USB 1.1 standard. The keyboard is definitely very sturdy but it doesn't seem to be worth $150.